[Seal Grey Sasha 986]

Hey guys, I've got several modifications on the horizon for this autocross season, one of which is a Sparco Corsa seat I picked up from a co-worker for a deal I couldn't turn down. Anyone on here got a Sparco seat? I'm trying to figure out which side mounts to go with...I'm looking at the Planted base and Sparco sliders, but don't know which side mounts to go with. I don't have a harness (yet), so I need something that will allow me to mount the seatbelt receptical to it...any insight is welcome!